HYDRAULIC PUMP REPAIR -726030539

TM 9-2320-360-34-2

28-4. HYDRAULIC PUMP REPAIR

This task covers:

a. Disassembly

Assembly

b. Cleaning/Inspection

INITIAL SETUP

Equipment Conditions

Materials/Parts

Hydraulic pump on clean work surface.

Adhesive-Sealant, Silicone (Item 2, Appendix B)

Grease, Automotive and Artillery (Item 32,

Appendix B)

Tools and Special Tools

Tool Kit, Genl Mech (Item 202, Appendix E)

Solvent, Dry Cleaning (Item 54, Appendix B)

Compressor Unit, Air (Item 24, Appendix E)

Bearing, Ball (Item 1, Appendix F)

Goggles, Industrial (Item 57, Appendix E)

Ring, Retaining (Item 240, Appendix F)

Puller Kit, Mechanical, Slide Hammer

Seals, Gasket (6) (Item 294, Appendix F)

(Item 125, Appendix E)

Seals, Pocket (36) (Item 318, Appendix F)

Wrench, Torque, 0-600 Lb-Ft (Item 233,

Seals, Ring (6) (Item 255, Appendix F)

Appendix E)

Seal, Lip (Item 303, Appendix F)

a. Disassembly

NOTE

Leaving two studs in place will aid in disassembly.

When pump is disassembled, housings look the same.

Mark and number

housings.

(1)

Remove

four nuts (1), two long studs (2), and washers (3) from port end cover (4).

(2)

Remove

port end cover (4) from gear housing (5).

(3)

Remove

gasket seal (6) from gear housing (5). Discard gasket seal.

(4)

Remove

two bearings (7) from port end cover (4) using bearing puller.

(5)

Remove

ring seal (8) from port end cover (4). Discard ring seal.

28-39